29; see text Toxicodendron is a genus of flowering plants in the sumac family, Anacardiaceae.

All members of the genus produce the skin-irritating oil urushiol, which can cause a severe allergic reaction.

Plants in the genus have pinnately compound, alternate leaves and whitish or grayish drupes.

[7] The common names come from similar appearances to other species that are not closely related and to the allergic response to the urushiol.

The sumac wax was a byproduct of traditional Japanese lacquer manufacture.